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Official data from INPI

PARTÍCULA DE CATALISADOR E PROCESSO DE CONVERSÃO DE HIDROCARBONETO

PublicadaInvention Patent

Application data

Number

PI8707087

Type

Invention Patent

Filing

12/28/1987

Publication

07/18/1989

Progress at the INPI

  1. Filing12/28/87
  2. Publication07/18/89
  3. Examination11/20/90
  4. Allowance04/20/93
  5. Grant09/28/93
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Uop Inc.

US

See this company's full portfolio

Inventors

T. I. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/18/1989

RPI 978

Pedido de patente depositado

#2.1

04/05/1988

RPI 911

Carta-patente expirada

#21.1

Patente extinta em 28/12/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

09/28/1993

RPI 1191

Notificação para pagamento de retribuição

#13.1

08/17/1993

RPI 1185

Deferimento

#9.1

04/20/1993

RPI 1168

Exigência - art. 36 da LPI

#6.1

07/07/1992

RPI 1127

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

14.1

08/07/1990

RPI 1027

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